Heel-support for lasts.



H. H. EATON.

HEEL SUPPORT FOR LASTS.

APPLICATION FILED SEPT; I2. I9I6.

"irnnrrtrsonnnnfron, j 'or isEvin-tnY; uvrnssnenusnrrs;Asseivoap BY Mnsnn Assiemf'inrnivfrs; To:UNITEDsnonfnnemnnav CORPORATION, or Pa'rnnsomnnwunnsny,

meneer.

A.' noni?oianrron1 ornnvv JERSEY.

frinnnsurponr non' misas.`

i specincation offreueslratena v Patented inprugtl. figuier `Top-'allwhom157mgGomera.' p y p "Be" it known that 1,' HARRISON "H l EATON,

,a Citizen Ofthe United States, residing at 4"lieverly, 'inthetcounty of lEssex 'and State lowing to bea full.` clear, `and exact `description of the inventionfsuch laswill enable others skilled "in the artV towhichzit appertains' to make and use the same.

This invention relates` to-` heel supports for. lasts,.and moreparticularly"to apro- 'jtector for heel supportsfor preventing the lining and upper of a l shoe from becoming injured whenthe'last is? placed lonf the heel support.

Y VVhentheupperof ahigh shoe or-boot is drawn inoverlthe last' there is atendency for" the* upper' and lining,` "which extend "above the topofthe" last to closelin upon the top "ofthe last. For this reason,` when i"the lasted shoe is placed ontheheel support of ajackrtheiupper and lining areoften forms of liningprotectors liavebeendet vised fto move ``the"-uppe`r away *from the top u everfth'ese protectors have" not been entirely satisfactory, "being `somewhat "uncertain in their actlbn and liable to' Idamage by the "heavy pressurr-isto which the lasts are^`subjected whileV on the vheel support.

The primary object of the present invention is to" provide" an improvedliningpro- 4 tector for a lleel support whlch will "be' simple and durable in construction and efficient and certain in operation.

Vith this and other objects in view, the invention consists in the improved lining protector for heel supports hereinafter described and set forth in the claims.

The various features of the invention are illustrated in the accompanying drawings, in which,

Figure l is a view in side elevation of the upper portion of a well known Vtype of sole laying machine, showing a heel support embodying the preferred form of the invention; Fig. 2 is a front elevation; Fig. 3 is a rear elevation; and Fig. i is a side eleblock andthespreader.

Y vfation offtheimproved heel supportshowing?` the liningV protector.` applied thereto." i

The' heel support illtistrated in the) `draw- *ings'consistsfof a sleeve which isl'seeured "uponthe `spindle l2 wlthqone end against al shoulderl to support `the last while` it is "spindle `;12.` Y The spreader" I6 is "loosely mounted on the sleeve 14: and isconnected with the sleevey'fsoias to haveagrotary and longitudinal movement thereon.` The rotary movement of the spreader is j obtained by means of a-pair of diametrieallyopposed ametrically opposed screws 20V which i are mounted in the 'Y spreader and have ``pins `22 which-project inton the spiralgroovesfl. The spiral grooves' extend through approximately "an are "of l900 andthe extentlof -movement 4of* the" spreader` on the sleeve'is *determined by'lt-he engagement of the pins 1122 with the end of thej'spiral 11grooves *18. The'spre'ader is normally held in a position @extended toward the endfof'the spindleby meansof ai compression?spring 24 whichis mounted on the sleeve between p the last `"zlhe preferred form of the invention is illustrated as embodied in the jack of the Goodyear sole laying machine. rlhe jack consists of a cross bar 26 which is supported by uprights 28 and upon the cross bar are mounted a heel post 30 and a toe post 32. A toe rest 34 for engaging the toe portion of the shoe is mounted upon the toe post 32 and the heel support is pivotally mounted upon the heel post 30. A compression spring 36 is mounted upon the heel post and the upper' end of the last block 10, which normally tends to move the spindle 12 toward the toe rest 34.

The operation of the heel support is as follows: IThe spring 24: normally holds the l"the last block -10 and theotherendforining 1beingoperated upon; This sleeve 14g- `how- "ever', l*may be "formedintegral -with the spiral grooveslS- whichlare formed infthe" *periphery*ofthe sleeve5 and a pair of d1- spreader extended toward the end of the spindle', and when Athe last is placed upon the spindle a pair of diametrically opposed spreading teeth 38 on the spreader will engage the top of the last. In Fig. 2 is illustrated the position which the spreader occupies with reference to the last when the teeth 38 irst come intov contact with the top of the last. As the last is moved up on vthe spindle the spreader will be rotated about the sleeve by the spiral groove and pin connection between them. During the movement lor the last on the spindle the spreading teeth remain inV contact with the top of the last and are rotated fromV Ya position longitudinally of the last to a position approximately transverse of the last.

Vhen they have come into the transversev position theyv will have forced the lining away from thefspindle so that it cannot be pinched between the sleeve 14 and the top ofrthe-last. Y A difliculty hereinbefore eX- perienced with various forms of lining protectors was due to the fact that the uppei1 surface of the last might be rough or have vridges which would be engaged by the spreadingV members of the lining protector and hold them from operation. Then when the pressure was placed upon the last, while operating upon the shoe, the lining might be injured or the protector broken.

With the lining protector illustrated in the drawings, it will be noted that the spreading teeth are/heavily constructed so that when they arek being rotated as the last is forced on to thespindle, if the top of the lasti is rough they will have suliicient vstrength to cut or plow their way through the wood to come to the position shown in Fig. 3. lt will be seen also that the spread-- ing teeth always remain in contact with the top of the last which will insure that no part of the lining or upper can be pinched between the spreader teeth or the sleeve and the top of the last. VWhen the last has been moved into the position shown in Fig. 3, the weight of the last rests upon the sleeve 14 and not upon the spreader, because the spreader is yieldingly held on the last by the spring 24, and can move up beyond the shoulder 15. Therefore, the spreader cannot be injured by the pressure upon the last while the shoe is being operated upon.

The preferred form of the invention having been thus described, what is claimed as new is:

l. A last heel support having in combination, a last block, a spindle provided with an enlarged portionl to form a last supporting shoulder, and a spreader mounted upon said enlarged portion to rotate axially thereof.

2. A last heel support having in combination a last block, a spindle provided with an enlarged Vportion to form a last supporting shoulder, a spreader on the enlarged portion mounted to move from a position between the last block and the shoulder to a position beyond the shoulder, and a Aconnection between the enlarged portion and the spreader whereby the spreader will be rotated in its movement.

3. A last heel support having in combination, a last block having a spindle provided with an enlarged portion to form a last supporting shoulder, a spreader surrounding said enlarged portion, the enlarged portion having spiral grooves each extending through approximately an arc of 90o, a connection between the spreader and the grooves, and spreading teeth on the spreader for engaging the last while the spreader is being rotated.

4. A last block, a spindle provided with an enlarged portion to form a last supporting shoulder, a spreader mounted on the enlarged portion, a groove and pin connection between the enlarged portion and spreader by which the spreader has a limited rotary motion on the enlarged portion, and a spring mounted between the last block and the spreader to hold the spreader eX- tended beyond the shoulder on the spindle.

HARRISON H. EATON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

` Washington, D. C. 

